Amazon Basics UPS Battery Backup & Surge Protector 1500VA/900W, 10 Outlets, Line Interactive Uninterruptible Supply, for Power Outage Protection, Black

I just received this UPS, so I can't comment on battery life. I got the 800VA/450W, 12 Outlets. It uses a 12V 9Ah battery that is very common and inexpensive, so when the original battery dies, it should be easy to find a replacement. I love that it has so many outlets, 6 with battery backup and 6 with only surge protection. I have many electronics connected, and this avoids using additional power strips. The main purpose of buying this UPS was to protect my QNAP TS-230 NAS during power outage. This is an entry level two bays file server. I wasn't sure if it would support communication with UPS backup battery. The QNAP manual for this model does not mention anything about connecting to UPS. I received the UPS and charged it overnight before connecting anything to it. It came with a USB A to B cable. The QNAP TS-230 has 3 USB ports: one is USB 2.0 speed and two are USB 3.0 speed. The USB 3.0 are designed for external drives to expand the capacity of the file server, so I figured I should connect the USB cable from the UPS to the USB 2.0 port on the back of QNAP. I turned the UPS on, waited a few seconds for it to come online and plugged the QNAP to one of the battery backup outlets. Next I turned on the QNAP. It takes about 5 minutes to boot. When I heard the second beep that indicates it's ready, I logged in into the QNAP from my computer. After a few seconds, a window appeared that an external device (CPS ABST800) was detected. I clicked on "View external storage settings" and it brought me to Control Panel>External Device>UPS. Here it showed the UPS manufacturer (CPS), the model (ABST800), the battery capacity and the estimated protection time. On this screen you can configure what the QNAP should do in case of power outage. I set it to turn off the NAS after 3 minutes of power outage. Next tested the setup: I unplugged the UPS from the wall. It started beeping every few seconds to indicate that it's running on battery. After 3 minutes on battery power, the NAS started an orderly shutdown process. After a few minutes, it shutdown completely. Perfect! As someone else mentioned, this UPS is manufactured by CyberPower, which is ubiquitous. This is an advantage in my opinion, because more clients are likely to support it than a smaller brand. For anyone that owns a QNAP NAS and is debating whether this UPS will work with it, it probably will.

Where I live we have very short power outages. This battery backup is great because it keeps the TV working even when the power goes out. Easy to install and very price competitive. Good buy for me!

I bought his almost 5 years ago and it is just now showing low battery capacity. I am ordering the same product again to replace the old one. This ran nonstop without noise, looked classy, and was easy to use. It has kept my server and internet running without fail through all of our power outages. I highly recommend this product.

I never gave a 1 before, bt this product quite simply has a long history of failure. I researched it on ChatGPT, Claude & Gemini. The battery fails within a month & then it is rendered useless. Do not buy this product. Spend the money to buy a proper UPS: If your Amazon Basics UPS Battery Backup & Surge Protector (400VA/255W) isn’t holding power when the electricity goes out, it means the unit isn’t supplying backup power as it should. There are several possible reasons — some simple to fix, and others that indicate a hardware limitation or failure. Here are the most common causes and what you can check: ✅ 1. Battery Is Dead or Bad The most frequent cause of a UPS not holding power is a worn-out or failed internal battery. Why this happens UPS batteries are sealed lead-acid (SLA) and wear out over time (usually 3–5 years). If the UPS was stored discharged for a long time, the battery may be permanently damaged. Even new units can have a defective battery. What to check Press the power/test button — does it beep or indicate battery status? Some models flash an error code if the battery is bad. If available, check the battery replacement indicator. Solution: Replace the UPS battery (if the model allows it). For this Amazon Basics unit, replacement batteries are typically inexpensive and the case can open to swap the battery. ✅ 2. UPS Was Never Fully Charged If the UPS wasn’t charged long enough before use: It may not have stored enough energy. New units usually need several hours of charge before first use. Solution: Plug it in and let it charge overnight (8–12 hours), then test again. ✅ 3. Load Too High for the UPS Capacity A 400VA/255W UPS is relatively low power — it can handle: A small desktop computer A router/modem A few peripherals … but not high-power devices like: Large monitors Gaming PCs Laser printers Space heaters If the connected load exceeds 255W, the UPS may instantly go into overload protection and drop power. Solution: Reduce the load: Unplug everything except a single device. Test if it still fails. ✅ 4. UPS Is Old or Stored Without Power If the UPS wasn’t used for a long time: The internal battery sulfates and can’t hold charge. Some UPS units lock out battery use after long idle periods. Solution: Recharge it fully and test battery with reduced load — if still no backup time, the battery likely needs replacement. ✅ 5. The Unit Is Defective Sometimes UPS units have internal failures: Faulty battery charger circuit Bad connection between battery and electronics Internal fuse blown Signs of this: No lights or beeps on battery test UPS immediately shuts off when unplugged Strange behavior like rapid blinking Solution: If under warranty, contact Amazon for a return/replacement. ❌ 6. Surge Only Outlets vs. Battery Backup Outlets Some UPS units have two types of outlets: Battery Backup + Surge Protection Surge Protection Only If you plugged devices into the surge-only outlets, they won’t receive backup power when the power fails. Check: On the unit label, make sure your devices are plugged into the battery backup outlets, not the surge-only ones. Quick Troubleshooting Checklist ✔ Make sure device is plugged into the battery-backup outlets ✔ Let it charge for 8–12 hours ✔ Disconnect excess load — try just one device ✔ Press power/test button for status indication ✔ If still not working → likely battery replacement needed When to Replace the Battery Typical UPS batteries (sealed lead-acid) need replacement every 3–5 years. For this Amazon Basics model, replacing the battery is usually possible — the battery inside is a standard size and can be swapped. If you want, tell me: 🔹 What devices are plugged into the UPS 🔹 How old the UPS is 🔹 What the UPS lights/indicators show when the power fails …and I can help you diagnose the problem more precisely.

It works but shuts down when you go over the rated watts. Have had a few gaming sessions rudely interrupted when my pc decides to hit turbo mode. Works great when the power goes out though. Just be cautious of what wattage you buy.

I have had this in use for about a month, and no problems whatsoever. I expected none, so that is satisfying. I strongly recommend using a UPS. This one was to replace an older one that I overloaded and ruined some equipment. I expect better results with this more robust UPS. I have had good results with Amazon Basics items in the past, and this seems to be of excellent quality.

Keeps wifi and computer on while closing files

Bought for garge door opener when power goes out and so far works flawlessly

I haven't had it for long (less than a month), but so far it works great and is a very good price. No issues so far at all. I will update review if i do have issues. This is my third UPS but first from AmazonBasics. I normally buy the cyberpower one. This one is lacking the LCD screen that cyberpower has but i never use that anyway.

It seems like a solid unit. These are actually built by Cyberpower, which uses the Cyberpower Powerpanel program to connect to Windows. The courier Intelcom delivered this to the wrong house. Thankfully, amazon was able to send a 2nd one out and I didn't have to fight with them or anything! It can be set up to turn off your pc automatically after a power outage, after it turns your pc off it will also shutdown the UPS about a minute after. Once power comes back on the UPS will automatically turn back on and if you have your PC setup accordingly in the BIOS your PC will also turn on automatically. One thing about this unit is if the battery of the UPS goes to 0% it will not turn back on automatically. But you shouldn't be draining it to 0% anyway. However, on my UnRaid server, I could not get this functionality to work. I can get it to turn off the server but not shutdown the UPS; as a result, I would have to manually turn on the server. It recognizes the UPS; I tried built-in UPS functionality and NUTS for the server, but neither worked. It works perfect on Windows though. I get about 50 mins of runtime on my PC if idling or browsing the web. Id recommend this UPS as long as your not wanting it to shutdown and restart non-windows servers, for anything windows it works great.

No issues with this. Working as expected. Great for low draw products like a fiber to cat6 modem.